1,3,4-TRISUBSTITUTED-4-ARYLPIPERIDINES AND THEIR PREPARATION
摘要
<p>The invention relates to a process for preparing novel 1,3,4-trisubstituted-4-aryl piperidines by reducing a 1,3,4-trisubstituted-4-aryl-1,4,5,6 tetrahydropyridine. The compounds are useful as narcotic antagonists and as analgesics.</p>
